Surface acid-base characteristics and their contribution to aggregative stability of nanoparticles

Elena Nikolaevna Yunda, Anna Godymchuk, Nata Lia Kosova, Denis Kuznetsov, Svetlana Senatova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Toxicant properties of nanoparticles are influenced by their dispersiveness, catalytic activity, aggregation and dissolution properties, which are determined by acid-base properties of the surface. This paper provides the experimental results of the research of surface acid-base characteristics for pH = 2.0...9.0, and takes into account their contribution to aggregative activity of Zn and ZnO nanoparticles in suspensions with pH = 4.0, 6.0, and 8.0. The maximum value of adsorption capacity can be expected in acid medium for Zn nanoparticles, and in base medium for ZnO nanoparticles. This study showed that when the value of pH is different from 6, suspension aggregative stability was strengthened or weakened for Zn and ZnO nanoparticles, respectively. The conclusion concerning the contribution of nanoparticles adsorption activity which is changed by surface acid-base characteristics to aggregative stability of particles of different compounds has been made.

Original languageEnglish
Title of host publicationNanomaterials for Structural, Functional and Biomedical Applications
Pages263-270
Number of pages8
DOIs
Publication statusPublished - 15 Jan 2014
EventRussian-German Forum on Nanotechnology - Tomsk, Russian Federation
Duration: 21 May 201324 May 2013

Publication series

NameAdvanced Materials Research
Volume872
ISSN (Print)1022-6680

Other

OtherRussian-German Forum on Nanotechnology
CountryRussian Federation
CityTomsk
Period21.5.1324.5.13

Keywords

  • Nanoparticles aggregation
  • Surface acid-base characteristics
  • Suspensions
  • Toxicity of nanoparticles

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Yunda, E. N., Godymchuk, A., Kosova, N. L., Kuznetsov, D., & Senatova, S. (2014). Surface acid-base characteristics and their contribution to aggregative stability of nanoparticles. In Nanomaterials for Structural, Functional and Biomedical Applications (pp. 263-270). (Advanced Materials Research; Vol. 872). https://doi.org/10.4028/www.scientific.net/AMR.872.263